Annuals for sun:
How to keep geraniums over the winter
Flower box arrangements for full sun
6 Annual flowers for cutting, with best cultivar and height
Annual flowers for full sun
Lantana, drought-tolerant and bushy 
Drought tolerant annual flowers that bloom from spring to fall
Licorice plant, 'Petiolare'
Verbena, long blooming flower
3 Easy to grow perennial flowers that go well together

Annuals for shade:

Additional annual flower topics:
Growing unscented annual and perennial flowers
7 Hardy annual flowers that tolerate frost
How to plan a simple annual flower garden
6 flowers with green blooms
Annual flowers that return each year through self-sowing

Purple coneflower
Perennials for sun: